Agglomerate and Aggregate Strength

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Yuen Sin Cheong, Chirangano Mangwandi, Agba Salman
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United Kingdom


Agglomeration, which is a size enlargement unit process, has applications in a wide range of industries, including mineral processing, pharmaceutical, detergent, agricultural, food processing and speciality chemical processing. The products of the agglomeration process are generally called agglomerates or granules if the size enlargement process is granulation or crystal if the size enlargement process if crystallization. Typically powders are agglomerated together to form larger particles with desired properties for instance improved flow properties, low dust formation during handling, better solubility. Industrial consumers of solid particulate products desire better flowability, metering properties, better product stability and lower environmental hazards [1]. Whatever the end use of the agglomerates it is important that they retain the engineered properties up to the point of final use. They should conform to the specifications they are produced according to even after undergoing several handling and transportation processes. This is not usually the case as some of the agglomerates fail during the transportation and other handling process caused by breakage of the particles. It becomes imperative that the agglomerates be made with sufficient strength to survive that handling and transportation process. The strength of the agglomerate depends on its structure and composition which in turn depends the process and formulation variables.